{
  "id": "1903.12404",
  "version": "v1",
  "published": "2019-03-29T09:12:00.000Z",
  "updated": "2019-03-29T09:12:00.000Z",
  "title": "Constraining the Fast Radio Burst (FRB) properties using the detections at Parkes, ASKAP and CHIME",
  "authors": [
    "Siddhartha Bhattacharyya",
    "Somnath Bharadwaj"
  ],
  "comment": "Submitted to MNRAS Letter",
  "categories": [
    "astro-ph.HE",
    "astro-ph.CO"
  ],
  "abstract": "We demonstrate how the FRB redshift and fluence distributions from the Parkes, ASKAP and CHIME telescopes can be used together to constrain the properties of the FRB population. Here we consider a simple model where all the FRBs have the same spectral index $\\alpha$ and rest frame energy $E$ (specified in a fixed band $2128\\;{\\rm MHz}$ to $2848\\;{\\rm MHz}$). We find that the constraints on $(\\alpha,E)$ depend on the scattering model for pulse broadening in the inter-galactic medium. For no scattering we find that there is a region of parameter space where the predictions are simultaneously consistent with the FRB redshift and fluence distributions at all three telescopes. The allowed $\\alpha$ range is bounded by $-6.0\\leq \\alpha \\leq-3.6$ and the allowed $E$ range is bounded by $1.79\\times 10^{33}{\\rm J} \\leq E \\leq 5.41\\times 10^{33}{\\rm J}$. Our analysis also rules out an empirical scattering model where the FRB pulse broadening in the IGM is predicted by extrapolating pulse broadening observed for pulsars in the ISM.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2019-03-29T09:12:00.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "fast radio burst",
      "properties",
      "detections",
      "pulse broadening",
      "frb redshift"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 0,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}